var box = document.getElementById('box');
var number = document.getElementById('number');
box.style.width = document.documentElement.clientWidth||document.body.clientWidth+'rem';
box.style.height = document.documentElement.clientHeight||document.body.clientHeight+'rem';

//var r = parseInt(Math.random()*3);	
//
//var arr = ['68.7%','72.9%','83.7%'];
//
//number.innerHTML = arr[r];
var touming = document.getElementById('touming');
var smile = document.getElementById('smile');
var pengyouquan = document.getElementById('pengyouquan');
pengyouquan.onclick = function(){
	touming.style.display = 'block';
	smile.style.display = 'block';
}
